2O2B

Spectroscopic and Structural Study of the Heterotropic Linkage between Halide and Proton Ion Binding to Gfp Proteins: E2(GFP)-I Complex

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5		14% (W/V) PEG 3350, 100 MM NH4 ACETATE, 0.2 M NH4I, PH 5.0, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 100K

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.066	α = 90
b = 62.854	β = 90
c = 69.11	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	IMAGE PLATE	MARRESEARCH			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	ENRAF-NONIUS FR571

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.94	46.499	98.2	0.13	0.13	12.8	5.2		16918		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.94	2.04	91.1		0.438	0.438	2.9	4.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 2H6V	1.94	18.66	15877	841	97.99	0.18416	0.1816	0.23422	RANDOM	19.641

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]
-0.07			0.66		-0.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.53
r_dihedral_angle_3_deg	14.384
r_dihedral_angle_4_deg	8.308
r_dihedral_angle_1_deg	7.973
r_scangle_it	3.396
r_scbond_it	2.158
r_angle_refined_deg	1.636
r_mcangle_it	1.385
r_angle_other_deg	1.274
r_metal_ion_refined	1.201
r_mcbond_it	0.856
r_symmetry_vdw_other	0.269
r_nbd_refined	0.265
r_symmetry_vdw_refined	0.239
r_nbd_other	0.201
r_mcbond_other	0.197
r_nbtor_refined	0.177
r_xyhbond_nbd_refined	0.162
r_symmetry_hbond_refined	0.112
r_chiral_restr	0.088
r_nbtor_other	0.088
r_bond_refined_d	0.014
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1886
Nucleic Acid Atoms
Solvent Atoms	148
Heterogen Atoms	9

Software

Software
Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling